Multiresolution wavelet analysis of earthquakes

Abstract We applied multiresolution wavelet analysis to the sequences of times between earthquakes occurred in two seismically active areas of Italian peninsula. We found that the standard deviation of the wavelet coefficients σwav decreases in correspondence with the occurrence of the strongest earthquakes in each sequence.

[1]  Marco Menichetti,et al.  Seismotectonic zoning in east-central Italy deduced from an analysis of the Neogene to present deformations and related stress fields , 1994 .

[2]  L. Telesca,et al.  Depth‐dependent time‐clustering behaviour in seismicity of southern California , 2001 .

[3]  Giusy Lavecchia,et al.  A structural model for active extension in Central Italy , 2000 .

[4]  A. Arneodo,et al.  Wavelet transform of multifractals. , 1988, Physical review letters.

[5]  Conor Heneghan,et al.  Heart Rate Variability: Measures and Models , 2000, physics/0008016.

[6]  Maria Macchiato,et al.  Identifying space–time clustering properties of the 1983–1997 Irpinia–Basilicata (Southern Italy) seismicity , 2001 .

[7]  Gianluca Valensise,et al.  Faulting mechanism and complexity of the November 23, 1980, Campania-Lucania Earthquake, inferred from surface observations , 1990 .

[8]  Metin Akay,et al.  Nonlinear Biomedical Signal Processing, Dynamic Analysis and Modeling , 2000 .

[9]  S. Thurner,et al.  Multiresolution Wavelet Analysis of Heartbeat Intervals Discriminates Healthy Patients from Those with Cardiac Pathology , 1997, adap-org/9711003.

[10]  F. Calamita,et al.  Structural styles, chronology rates of deformation, and time-space relationships in the Umbria-Marche thrust system (central Apennines, Italy) , 1994 .

[11]  E. Tondi,et al.  Active tectonics in the central Apennines and possible implications for seismic hazard analysis in peninsular Italy , 1997 .

[12]  L. Telesca,et al.  Monofractal and multifractal approaches in investigating scaling properties in temporal patterns of the 1983-2000 seismicity in the western Corinth graben, Greece , 2002 .

[13]  Metin Akay,et al.  Dynamic analysis and modeling , 2001 .

[14]  Metin Akay,et al.  Time frequency and wavelets in biomedical signal processing , 1998 .

[15]  B. Bolt,et al.  The standard error of the magnitude-frequency b value , 1982 .

[16]  Y. Ashkenazy,et al.  Discrimination of the Healthy and Sick Cardiac Autonomic Nervous System by a New Wavelet Analysis of Heartbeat Intervals , 1998 .

[17]  Ingrid Daubechies,et al.  Ten Lectures on Wavelets , 1992 .

[18]  A. Simonelli,et al.  Ground effects and surface faulting in the September-October 1997 Umbria-Marche (Central Italy) seismic sequence , 2000 .